A person support apparatus comprises a lower frame, a support, and an upper frame. The support is coupled to the lower frame. The upper frame has a head section and a foot section and defines a longitudinal axis passing through the head section and the foot section and a lateral axis substantially perpendicular to the longitudinal axis. The upper frame includes a tilt mechanism pivotably coupling the upper frame to the support. The tilt mechanism includes a base and a rocker nested within the base. The base and the rocker are pivotable with respect to one another about a pivot axis that passes through the base and the rocker and is substantially parallel the longitudinal axis. The upper frame is pivotable about the pivot axis with respect to the lower frame.
